Are we close to the QGP? - Hadrochemical vs. microscopic analysis of particle production in ultrarelativistic heavy ion collisions

  • Ratios of hadronic abundances are analyzed for pp and nucleus-nucleus collisions at sqrt(s)=20 GeV using the microscopic transport model UrQMD. Secondary interactions significantly change the primordial hadronic cocktail of the system. A comparison to data shows a strong dependence on rapidity. Without assuming thermal and chemical equilibrium, predicted hadron yields and ratios agree with many of the data, the few observed discrepancies are discussed.

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Metadaten
Author:Steffen A. BassORCiDGND, Mohamed Belkacem, Mathias Brandstetter, Marcus BleicherORCiDGND, Lars GerlandGND, Jens Konopka, Ludwig NeiseGND, Christian Spieles, Sven SoffORCiD, Henning WeberGND, Horst StöckerORCiDGND, Walter GreinerGND
URN:urn:nbn:de:hebis:30-6864
ArXiv Id:http://arxiv.org/abs/nucl-th/9711032
Document Type:Preprint
Language:English
Date of Publication (online):2005/04/13
Year of first Publication:1997
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2005/04/13
Note:
Preprint, später in: Phys.Rev.Lett. 81 (1998) 4092-4095
Source:http://de.arxiv.org/abs/nucl-th/9711032 , Phys.Rev.Lett. 81 (1998) 4092-4095
HeBIS-PPN:12873521X
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht